HG Motorsport ignition coils for Mercedes-AMG 4.0 V8 BiTurbo M176/M177/M178

Technical optimisation for maximum power

HG Motorsport high-performance ignition coils provide increased spark energy and improved thermal stability for modern high-performance engines. In tuned engines, original ignition coils can quickly reach their limits, often resulting in misfires, uneven combustion and thermal overload.

HG Motorsport ignition coils have been specifically developed to overcome these challenges. They offer increased spark energy, enhanced thermal stability and consistently reliable performance, even under the most demanding conditions.

Technical features of the HG Motorsport ignition coils

• Optimised primary and secondary windings: additional windings and high-quality copper wire improve energy transfer and provide consistently high ignition voltage.
• Increased spark energy (+10% compared with OE): optimum spark plug supply throughout the complete dwell period, ideal for powerful engines.
• Consistent energy output under high load: particularly suitable for turbocharged and supercharged engines requiring stable ignition voltage over longer periods.
• Extended service life: high-quality insulation materials and optimised windings minimise thermal loads and protect against internal short circuits.
• Thermal resistance: continuous operation up to 120°C and stable operation up to 140°C without loss of performance.
• Optimised spark formation: stable ignition even at high boost pressures and with richer mixtures, significantly improving combustion efficiency.

Comparison of spark energy

The diagram shows the superior spark energy of the HG Motorsport ignition coils compared with standard components:

• Up to 1.5 ms: both coil types deliver comparable energy.
• From 2.0 ms: the energy of the standard ignition coils drops considerably, while the HG Motorsport ignition coils continue to deliver consistently high values.
• At 3.0 ms: the HG Motorsport ignition coils deliver almost 25% more energy, which is crucial at high engine speeds and in tuned engines.

Even at a temperature of 140°C, the spark energy of the HG Motorsport ignition coils remains stable at 70 mJ, while OE coils have already failed or reached critical values.

Ideal for

• High-performance engines: optimum ignition even under extreme loads.
• Motorsport and trackdays: stability and consistent energy during continuous operation.
• Daily drivers with increased power: improved efficiency and ignition stability in everyday use.
• Replacing OE ignition coils: greater reliability and extended service life.

Winding structure and operation

The ignition coils use an optimised primary and secondary winding structure. The primary winding generates a strong magnetic field; when this field collapses, a high voltage is induced in the secondary winding. The increased number of windings and improved insulation ensure consistent spark energy even at high engine speeds and during peak load conditions.

Thermal testing and long-term results

1. Continuous thermal load
   Test setup: continuous operation at 120°C with simulated load changes over 100 hours.
   Result: no reduction in performance and no thermal degradation of the HG Motorsport ignition coils.
   Comparison: OE ignition coils lost approximately 25% of their energy after 50 hours, followed by initial material changes.
2. Additional test at 140°C
   HG Motorsport: stable operation for 8 hours without failures.
   OE ignition coils: performance drop of up to 40% after 4 hours, followed by thermal failures.

Summary of laboratory data

• Maximum spark energy: HG Motorsport 120 mJ, OE ignition coil 90 mJ.
• Continuous load at 120°C: HG Motorsport > 100 hours, OE ignition coil 50 hours.
• Functionality at 140°C: HG Motorsport stable for up to 8 hours, OE ignition coil performance drop after 4 hours.
• Insulation resistance (500 V): HG Motorsport > 20 MΩ, OE ignition coil approximately 10 MΩ.

OEM numbers replaced by the ignition coil: A1779060206, A1779060300, A1779060500, A1779064202, A1779069500, 1779060206, 1779060300, 1779060500, 1779064202, 1779069500

Suitable for: Mercedes-Benz Amg GT I (C190) / I (R190) / I (X290) / II (C192), Mercedes-Benz C63 Amg II (W205), Mercedes-Benz E-Class IV (W213), Mercedes-Benz G-Class I (W463), Mercedes-Benz Glc Class I (C253), Mercedes-Benz Glc Coupe I (C253), Mercedes-Benz Glc I (X253), Mercedes-Benz Gle Class II (C167), Mercedes-Benz Gle II (V167), Mercedes-Benz Gls II (X167), Mercedes-Benz S-Class VI (W222) / VII (W223), Mercedes-Benz SL VI (R232).

Manufacturer’s vehicle data

• HG Hochleistungs Zündspule Mercedes AMG/C/R/G/GT/S63 & , V8 Bi Turbo 4.0L M176.980/M177.980 /M178.9

Original product name by HG Motorsport (»z.B.« = e.g.). Please check model, year and engine of your vehicle before ordering; if in doubt, contact us and we will check for you.